The medical formulary : comprising standard and approved formulae for the preparations and compounds employed in medical practice / by Henry Besley.

  • Beasley, Henry.
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: The medical formulary : comprising standard and approved formulae for the preparations and compounds employed in medical practice / by Henry Besley. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    distil with a gentle neat. The first bottle should contain a little warm water, and the others be surrounded with ice. JEther Nitricus. Nitrous, or Ryponitrous JEther. E. Recti- fied spirit f ^xv, pure nitric acid f ^vij. Put the spirit, with a little clean sand, into a quart matrass fitted with a cork, through which pass a safety tube, and another tube connected with a re- frigeratory. The safety tube being filled with pure nitric acid, add through it gradually, f^iijss of the acid; and when the action has subsided, add the rest by half ounces, at intervals, keeping the refrigeratory very cool. Agitate the distilled aether first with milk of lime, and afterwards with half its volume of strong solution of muriate of lime, and decant. [Liebig has proposed a more productive process (by the use of starch), but the product is contaminated with prussic acid. Pedroni says it may be safely and readily made by adding to 11 parts of crys- tallized nitrate of ammonia in a glass retort, 8 parts of sulphuric acid previously mixed with 9 of alcohol, and distilling by a naked fire, into a cooled receiver.] JEther Sulphuricus. L. iEther Rectificatus. L. 1824. JEliher, or Rectified ^Ether. Pour tbij of rectified spirit into a glass re- tort, add Ibij of sulphuric acid, and mix; place it in sand, and heat quickly to boiling; let the liquor distil into a receiver, kept very cool, till a heavier portion passes over; to what re- mains in the retort, when sufficiently cooled, add Ibj more spirit, and let the aether distil as before. Mix the distilled liquors, pour off the supernatant part, and add to it ^ j of recently ignited carbonate of potash, and redistil. E. Rectified spirit Oijss, sulphuric acid f ^x. Pour f ^xij of the spirit gently over the acid, in an open vessel, and stir them well together. Transfer the mixture into a glass matrass connected by tubes with a re- frigeratory, and with a raised reservoir containing the rest of the spirit. Raise the heat quickly to about 280°, and let the spirit flow into the matrass in a continuous stream in a quantity equal to that which distils over. When f^xlij have passed over, and all the spirit has been added, the process may be stopped. Agitate the aether with f ^xvj of saturated solution of muriate of lime, to which ^ss of slaked lime has been added; Recant the aether, and redistil with a gentle heat, so long as the liquid which passes over has a density not above 735. D. di- rects liquor aethereus sulphuricus to be distilled from 3xxxij each of sulphuric acid and rectified spirit, and f ^xx drawn over. From this, with ^ij dried subcarbonate of potash, f ^xij of aether sulphuricus are to be distilled.